CN2543203Y

CN2543203Y - Cooling fin

Info

Publication number: CN2543203Y
Application number: CN 02226376
Authority: CN
Inventors: 吕坤武; 郑年添
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2002-03-22
Filing date: 2002-03-22
Publication date: 2003-04-02
Anticipated expiration: 2012-03-22

Abstract

A heat dissipating fin comprises a main body portion and two connection portions. The main body portion has two fixing holes at two ends thereof respectively, a through hole at middle part thereof, and a joint part protruding from the through hole part toward one side of the heat dissipating fin to make the heat dissipating fin joint with a heat pipe via the through hole and the joint part. The connection portions are formed by respectively perpendicularly extending outward from two ends of the main body portion, which comprise a vertical part and a bearing part. The vertical part comprises one first accommodating block and two second accommodating blocks. The first accommodating block has two sides each forming a first accommodating portion. A second accommodating portion is formed between the second accommodating blocks. The bearing portion is formed by perpendicularly extending inward from the second accommodating portion of the vertical part, is parallel with the main body portion, and is provided with two fixing protrusions corresponding to the fixing holes of the main body portion.

Description

Radiating fin

[technical field]

The utility model is about a kind of radiating fin, is meant the radiating fin that a kind of contact area is big, radiating efficiency is high and the mode that is assembled is stable especially.

[technical background]

Continuous development along with electronic industry and information technology, the ability of electronic installation information processing is more and more stronger, the integrated degree of electronic component is more and more higher, the heat of its generation is also more and more, so need to adopt a kind of efficient radiating apparatus, make rapid and balanced the exhaling of heat, thereby guarantee that the electronic equipment running is normal.

In existing heat abstractor, the overwhelming majority adopt radiating fins to combine with conducting-heat elements (mostly being heat pipe) and its joint form between the two to be a plurality of radiating fins be an interference fit on the conducting-heat elements in the mode of expander socket.In this juncture, the contact area between each radiating fin is less, makes between each radiating fin heat transfer efficiency lower, and heat can not effectively disperse when causing thermal-arrest, influences the radiating efficiency of heat abstractor; Secondly,, after conducting-heat elements and radiating fin expand with heat and contract with cold, very likely cause radiating fin to come off, make heat abstractor lose heat sinking function from conducting-heat elements because conducting-heat elements is different with the thermal coefficient of expansion between the radiating fin.Correlation technique can be with reference to No. the 088213447th, Taiwan patent application.

[summary of the invention]

The purpose of this utility model provides the radiating fin that contact area is big, radiating efficiency is high and the mode that is assembled is stable between a kind of and conducting-heat elements.

The purpose of this utility model is achieved through the following technical solutions: the utility model radiating fin comprises a main part and two connecting portions.These radiating fin main body two ends respectively are provided with two fixing holes, offer a perforation in the center of this radiating fin main body, and protrude out a junction surface in this perforation place to fin one side, make these radiating fins borrow perforation and junction surface to engage with heat pipe; These fin two ends respectively extend outward a junction, and this connecting portion comprises that one first accommodates piece, two second and accommodates a piece and a supporting part.This first is accommodated the piece both sides and respectively forms one first resettlement section, and this two second is accommodated interblock and form one second resettlement section.This supporting part is from this inside vertical extent in second resettlement section and parallel with this main part, and convexes with two fixed lobes corresponding to the fixing hole place of this main part thereon.During assembling, these a plurality of piece and resettlement section corresponding matching of accommodating are beneficial to fixing between radiating fin; This supporting part is then fitted with the radiating fin main body, thereby increases the contact area between radiating fin; This fixing hole and fixed lobe match, and can strengthen fixing between radiating fin.

The advantage of the utility model radiating fin is: contact area is big, radiating efficiency is high, heat radiation is fast balanced and assembling mode is stable.

The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.

[description of drawings]

Fig. 1 is the stereogram of the utility model radiating fin first embodiment.

Fig. 2 is the stereogram at the utility model radiating fin first another visual angle of embodiment.

Fig. 3 is the stereogram after the utility model radiating fin first embodiment and the heat pipe assembling.

Fig. 4 is the end view after the utility model radiating fin first embodiment and the heat pipe assembling.

Fig. 5 is the stereogram of the utility model radiating fin second embodiment.

Fig. 6 is the end view after the utility model radiating fin second embodiment and the heat pipe assembling.

Fig. 7 is the stereogram of the utility model radiating fin the 3rd embodiment.

Fig. 8 is the end view after the utility model radiating fin the 3rd embodiment and the heat pipe assembling.

Fig. 9 is the stereogram of the utility model radiating fin the 4th embodiment.

Figure 10 is the end view after the utility model radiating fin the 4th embodiment and the heat pipe assembling.

[embodiment]

See also Fig. 1 and Fig. 2, the utility model radiating fin 1 can engage with conducting-heat elements such as a heat pipe to disperse heat, and it comprises a main part 10 and two connecting portions 30 that extend along 10 liang of ora terminalis reverse vertical of this main part respectively.

This main part 10 roughly is a rectangle, and its center position is provided with a perforation 12, but heating tube pass, this perforation shape of 12 can be according to the variation of heat pipe, and makes this radiating fin 1 effectively to be undertaken on the heat pipe.This main part 10 vertically outwards protrudes out a junction surface 14 along the internal face of perforation 12, and this junction surface 14 can increase contact area between the two and control the spacing of 1 of adjacent two radiating fin when this heat pipe engages with this radiating fin 1.The edge of this perforation 12 radially outward offers a plurality of flutings 16, and this fluting can extend to the wall at junction surface 14, increasing the elasticity at junction surface 14, and can be when heat pipe be pressed in this perforation 10 fixed radiator fin 1 at once.The two ends of this main part respectively are provided with two fixing holes 18.

Each connecting portion 30 comprises that one first accommodates piece 32a, two second and accommodates a piece 32b and a supporting part 34.First to accommodate piece 32a be that an ora terminalis vertical extent from this main part 10 comes out for this, and hollow out at two jiaos of ends of lower side and respectively to form one first resettlement section 36.This second is accommodated piece 32b and extends upward respectively from these first two jiaos of ends of upside of accommodating piece 32a respectively to form, and two second accommodates and form one second resettlement section 38 between piece 32b at this.This supporting part 34 is inwardly to vertically extend from this second resettlement section 38 and parallel with this main part 10, and fixing hole 18 positions corresponding to this main part 10 convex with two fixed lobes 40 on it.

Please consult Fig. 3 and Fig. 4 together, a plurality of radiating fins 1 can be inserted in heat pipe 50 from top to bottom successively and stack together mutually.And a plurality of this radiating fin 1 stacked together after, should accommodate piece 32a by first of the radiating fin 1 of top and can be contained in second second resettlement section 38 of accommodating between piece 32b by the radiating fin 1 of below; Should accommodate piece 32b by two second of the radiating fin 1 of below and then can be contained in these two first resettlement sections 36, avoid its loosening along on heat pipe 50 directions by the radiating fin 1 of top.The two sides of the main body 10 of radiating fin 1 can be posted by respectively on the supporting part 34 of its upper and lower radiating fin 1, and the fixing hole projection 40 on the supporting part 34 of radiating fin 1 can snap in respectively in the fixing hole 18 of main part 10 of its upper and lower radiating fin 1.When the main body 10 of radiating fin 1 is posted by on the supporting part 34 of radiating fin 1, can increases the contact area of 1 of radiating fin and balanced heat dispersing to each radiating fin 1, thereby increase radiating effect.

See also Fig. 5 and Fig. 6, the difference of the utility model radiating fin 70 and aforementioned radiating fin 1 only is that 70 liang of connecting portions 74 of this radiating fin are from two ora terminalis of its main part 72 vertical extent in the same way.

See also Fig. 7 and Fig. 8, the utility model radiating fin 80 and the difference of aforementioned radiating fin 1 only are second the accommodating piece 86b and link to each other with two ora terminalis of this main body 82 of two connecting portions 84 of this radiating fin 80.

See also Fig. 9 and Figure 10, the difference of the utility model radiating fin 90 and aforementioned radiating fin 80 only is that two connecting portions 94 of this radiating fin 90 are from 92 liang of ora terminalis of its main part vertical extent upwards simultaneously.

Claims

1. a radiating fin comprises a main part and two connecting portions, and it is characterized in that: this main part is provided with at least one fixing hole; This two connecting portion is the two ends edge difference vertical extent along this main part, each connecting portion comprises that one first accommodates piece, two second and accommodates a piece and a supporting part, these first two side angle ends of accommodating the piece below respectively form one first resettlement section, and this two second is accommodated between the piece and to form one second resettlement section, this supporting part is from this inside vertical extent in second resettlement section and parallel with this main part, and convexes with at least one fixed lobe on it.

2. radiating fin as claimed in claim 1 is characterized in that: the center position of this main part is provided with a perforation, and its shape can change according to the form of conducting-heat elements.

3. radiating fin as claimed in claim 2 is characterized in that: this main part vertically outwards protrudes out a junction surface along this perforation internal face.

4. radiating fin as claimed in claim 1 is characterized in that: the two ends of this main part respectively are provided with two fixing holes.

5. as claim 1 or 4 described radiating fins, it is characterized in that: first of this connecting portion is accommodated piece and is linked to each other with this main part.

6. radiating fin as claimed in claim 5 is characterized in that: this two connecting portion is to extend along two ora terminalis reverse vertical of this main part.

7. radiating fin as claimed in claim 6 is characterized in that: this two connecting portion is along two ora terminalis of this main part vertical extent in the same way.

8. as claim 1 or 4 described radiating fins, it is characterized in that: it is to link to each other with this main part that second of this connecting portion is accommodated piece.

9. radiating fin as claimed in claim 8 is characterized in that: this two connecting portion is to extend along two ora terminalis reverse vertical of this main part.

10. radiating fin as claimed in claim 8 is characterized in that: this two connecting portion is along two ora terminalis of this main part vertical extent in the same way.